Pull LED updates from Pavel Machek:
"This is very quiet release for LEDs, pca963 got blinking support and
that's pretty much it"
* tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: pca963: fix misleading indentation
dt-bindings: leds: Document mmc trigger
leds: pca963x: fix blink with hw acceleration
Pull x86 platform driver updates from Hans de Goede:
- AMD Platform Management Framework (PMF) driver with AMT and QnQF
support
- AMD PMC: Improved logging for debugging s2idle issues
- Big refactor of the ACPI/x86 backlight handling, ensuring that we
only register 1 /sys/class/backlight device per LCD panel
- Microsoft Surface:
- Surface Laptop Go 2 support
- Surface Pro 8 HID sensor support
- Asus WMI:
- Lots of cleanups
- Support for TUF RGB keyboard backlight control
- Add support for ROG X13 tablet mode
- Siemens Simatic: IPC227G and IPC427G support
- Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support
- tools/power/x86/intel-speed-select: Various improvements
- Various cleanups
- Various small bugfixes
* tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (153 commits)
platform/x86: use PLATFORM_DEVID_NONE instead of -1
platform/x86/amd: pmc: Dump idle mask during "check" stage instead
platform/x86/intel/wmi: thunderbolt: Use dev_groups callback
platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks
platform/surface: Split memcpy() of struct ssam_event flexible array
platform/x86: compal-laptop: Get rid of a few forward declarations
platform/x86: intel-uncore-freq: Use sysfs_emit() to instead of scnprintf()
platform/x86: dell-smbios-base: Use sysfs_emit()
platform/x86/amd/pmf: Remove unused power_delta instances
platform/x86/amd/pmf: install notify handler after acpi init
Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF
platform/x86/amd/pmf: Add sysfs to toggle CnQF
platform/x86/amd/pmf: Add support for CnQF
platform/x86/amd: pmc: Fix build without debugfs
platform/x86: hp-wmi: Support touchpad on/off
platform/x86: int3472/discrete: Drop a forward declaration
platform/x86: toshiba_acpi: change turn_on_panel_on_resume to static
platform/x86: wmi: Drop forward declaration of static functions
platform/x86: toshiba_acpi: Remove duplicate include
platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading
...
I'm getting warnings:
/tmp/next/build/drivers/leds/leds-pca963x.c: In function 'pca963x_register_leds':
/tmp/next/build/drivers/leds/leds-pca963x.c:355:3: error: this 'if' clause does not guard...
+[-Werror=misleading-indentation]
355 | if (hw_blink)
| ^~
/tmp/next/build/drivers/leds/leds-pca963x.c:357:4: note: ...this statement, but the latter is
+misleadingly indented as if it were guarded by the 'if'
357 | led->blinking = false;
| ^~~
cc1: all warnings being treated as errors
Fix the indentation to make them go away.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
LEDs would behave differently depending on the blink hardware
acceleration configuration. This commit will make LEDs respond exactly
the same independently of the hardware acceleration status.
In other words, if you had two pca963x, side by side, one with blink
hardware acceleration "ON" and the other "OFF; and performed some
arbitrary sequence of API calls (e.g. turn on/off, change brightness,
change blink mode, etc.) you probably would end with not matching LED
states.
'pca963x software blink' and 'leds-gpio' behavior were used as
reference.
Actual chip used to validate this change: pca9634
Some of the unmatched behaviors being fixed are (when hw blink was "ON")
- Leds would stop blinking when the brightness was changed.
- Leds would persist their blinking mode even after being
turned off (brightness = 0).
- Leds would only blink if another led was solid (pca963x will be
forced out of low power)
Signed-off-by: Bernardo Rodrigues <bernardocrodrigues@live.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Returning an error value in an i2c remove callback results in a generic
error message being emitted by the i2c core, but otherwise it doesn't
make a difference. The device goes away anyhow and the devm cleanups are
called.
So instead of triggering the generic i2c error message, emit a more
helpful message if a problem occurs and return 0 to suppress the generic
message.
This patch is a preparation for making i2c remove callbacks return void.
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The mutex might still be in use until the devm cleanup callback
devm_led_classdev_flash_release() is called. This only happens some time
after lm3601x_remove() completed.
Fixes: e63a744871 ("leds: lm3601x: Convert class registration to device managed")
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Returning an error value from an i2c remove callback results in an error
message being emitted by the i2c core, but otherwise it doesn't make a
difference. The device goes away anyhow and the devm cleanups are
called.
As lm3697_remove() already emits an error message on failure and the
additional error message by the i2c core doesn't add any useful
information, don't pass the error value up the stack. Instead continue
to clean up and return 0.
This patch is a preparation for making i2c remove callbacks return void.
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Pull LED updates from Pavel Machek:
"A new driver for bcm63138, is31fl319x updates, fixups for multicolor.
The clevo-mail driver got disabled, it needs an API fix"
* tag 'leds-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (23 commits)
leds: is31fl319x: use simple i2c probe function
leds: is31fl319x: Fix devm vs. non-devm ordering
leds: is31fl319x: Make use of dev_err_probe()
leds: is31fl319x: Make use of device properties
leds: is31fl319x: Cleanup formatting and dev_dbg calls
leds: is31fl319x: Add support for is31fl319{0,1,3} chips
leds: is31fl319x: Move chipset-specific values in chipdef struct
leds: is31fl319x: Use non-wildcard names for vars, structs and defines
leds: is31fl319x: Add missing si-en compatibles
dt-bindings: leds: pwm-multicolor: document max-brigthness
leds: turris-omnia: convert to use dev_groups
leds: leds-bcm63138: get rid of LED_OFF
leds: add help info about BCM63138 module name
dt-bindings: leds: leds-bcm63138: unify full stops in descriptions
dt-bindings: leds: lp50xx: fix LED children names
dt-bindings: leds: class-multicolor: reference class directly in multi-led node
leds: bcm63138: add support for BCM63138 controller
dt-bindings: leds: add Broadcom's BCM63138 controller
leds: clevo-mail: Mark as broken pending interface fix
leds: pwm-multicolor: Support active-low LEDs
...
The i2c probe functions here don't use the id information provided in
their second argument, so the single-parameter i2c probe function
("probe_new") can be used instead.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
When non-devm resources are allocated they mustn't be followed by
devm allocations, otherwise it will break the tear down ordering
and might lead to crashes or other bugs during ->remove() stage.
Fix this by wrapping mutex_destroy() call with
devm_add_action_or_reset().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Add mod_devicetable.h include.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Fix remaining non-standard place for comments.
Remove remaining dev_dbg after regmap_read in is31fl3196_brightness_set.
Remove __func__ in dev_dbg calls, instead adding "channel" string to
describe the first displayed value.
Change remaining container_of() call to be on one line,
as well as a few others.
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Allow setting chips' specifics in chipdef struct by adding fields for:
- the reset register address
- a pointer to a regmap_config struct
- a pointer to a brightness_set function
- current default, min and max values
- a boolean to distinguish 319{0,1,3} and 319{6,9} chips
and use those fields in places where distinction has to be made.
The fields for 319{0,1,3} still point to 319{6,9} values.
No functional change.
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The driver core supports the ability to handle the creation and removal
of device-specific sysfs files in a race-free manner. Take advantage of
that by converting this driver to use this by moving the sysfs
attributes into a group and assigning the dev_groups pointer to it.
Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-leds@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The whole "enum led_brightness" is marked as obsolete. Replace it with a
(non-)zero check.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
It's what we do for all other LEDs drivers.
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
It's a new controller first introduced in BCM63138 SoC. Later it was
also used in BCM4908, some BCM68xx and some BCM63xxx SoCs.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
When requesting a PWM it might return -EPROBE_DEFER if it hasn't probed
yet. This is not an error, so just propagate the -EPROBE_DEFER without
logging anything. There is already dev_err_probe for exactly this
situation.
Fixes: 9fa2762110 ("leds: Add PWM multicolor driver")
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
On Apollo Lake the pinctrl drivers will now come up without ACPI. Use
that instead of open coding it.
Create a new driver for that which can later be filled with more GPIO
based models, and which has different dependencies.
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Since we have a common P2SB accessor in tree we may use it instead of
open coded variants.
Replace custom code by p2sb_bar() call.
Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Pull more ARM multiplatform updates from Arnd Bergmann:
"The second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went
through several rebases before the merge window as bugs were found, so
they remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files"
* tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
ARM: pxa/mmp: remove traces of plat-pxa
ARM: pxa: convert to multiplatform
ARM: pxa/sa1100: move I/O space to PCI_IOBASE
ARM: pxa: remove support for MTD_XIP
ARM: pxa: move mach/*.h to mach-pxa/
ARM: PXA: fix multi-cpu build of xsc3
ARM: pxa: move plat-pxa to drivers/soc/
ARM: mmp: rename pxa_register_device
ARM: mmp: remove tavorevb board support
ARM: pxa: remove unused mach/bitfield.h
ARM: pxa: move clk register definitions to driver
ARM: pxa: move smemc register access from clk to platform
cpufreq: pxa3: move clk register access to clk driver
ARM: pxa: remove get_clk_frequency_khz()
ARM: pxa: pcmcia: move smemc configuration back to arch
ASoC: pxa: i2s: use normal MMIO accessors
ASoC: pxa: ac97: use normal MMIO accessors
ASoC: pxa: use pdev resource for FIFO regs
Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops
Input: wm97xx - switch to using threaded IRQ
...
The leds-trigger-pattern documentation describes how the brightness of
the LED should transition linearly from one brightness value to the
next, over the given delta_t.
But the pattern engine in the Qualcomm LPG hardware only supports
holding the brightness for each entry for the period.
This subset of patterns can be represented in the leds-trigger-pattern
by injecting zero-time transitions after each entry in the pattern,
resulting in a pattern that pattern that can be rendered by the LPG.
Rework LPG pattern interface to require these zero-time transitions, to
make it comply with this subset of patterns and reject the patterns it
can't render.
Fixes: 24e2d05d1b ("leds: Add driver for Qualcomm LPG")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Returning an error value from an i2c remove callback results in an error
message being emitted by the i2c core, but otherwise it doesn't make a
difference. The device goes away anyhow and the devm cleanups are
called.
As stk3310_set_state() already emits an error message on failure and the
additional error message by the i2c core doesn't add any useful
information, don't pass the error value up the stack. Instead continue
to clean up and return 0.
This patch is a preparation for making i2c remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The Qualcomm LPG driver fails to probe unless PWM support is enabled so
add the missing Kconfig dependency.
Fixes: 24e2d05d1b ("leds: Add driver for Qualcomm LPG")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Make the AUX pin optional, since it isn't a core part of functionality,
and the device is designed to be operational with only one CTRL pin.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Use dev_err_probe instead of dev_err to avoid duplicate error
messages if the GPIO allocation makes the probe defer.
Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Returning an error value in an i2c remove callback results in a generic
error message being emitted by the i2c core, but otherwise it doesn't make
a difference. The device goes away anyhow and the devm cleanups are
called.
So instead of triggering the generic i2c error message, emit a more helpful
message if a problem occurs and return 0 to suppress the generic message.
This patch is a preparation for making i2c remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The drivers/leds/rgb subdirectory is relatively fresh, so we move this
new PWM multi-color driver into it.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
By allowing to group multiple monochrome PWM LEDs into multicolor LEDs,
all involved LEDs can be controlled in-sync. This enables using effects
using triggers, etc.
Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The regulator LED can easily be adapted to probe from the
device tree.
We switch led_classdev_register() to led_classdev_register_ext()
passing some struct led_init_data init_data that we leave NULL
save the fwnode if platform data isn't present so that it will be
populated from the device tree.
If we have platform data we set up the name from the platform
data but using init_data instead.
Cc: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Instead of repeating the hard to read &pdev->dev just create a
local struct device *dev in probe().
Cc: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Up to now pca9532_destroy_devices() returns always zero because it's
always called with data != NULL. Remove the never-taken error path and
make it return void which makes it easier to see in the callers that
there is no error to handle.
Also the return value of i2c remove callbacks is ignored anyway.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The Light Pulse Generator (LPG) is a PWM-block found in a wide range of
PMICs from Qualcomm. These PMICs typically comes with 1-8 LPG instances,
with their output being routed to various other components, such as
current sinks or GPIOs.
Each LPG instance can operate on fixed parameters or based on a shared
lookup-table, altering the duty cycle over time. This provides the means
for hardware assisted transitions of LED brightness.
A typical use case for the fixed parameter mode is to drive a PWM
backlight control signal, the driver therefor allows each LPG instance
to be exposed to the kernel either through the LED framework or the PWM
framework.
A typical use case for the LED configuration is to drive RGB LEDs in
smartphones etc, for which the driver supports multiple channels to be
ganged up to a MULTICOLOR LED. In this configuration the pattern
generators will be synchronized, to allow for multi-color patterns.
The idea of modelling this as a LED driver ontop of a PWM driver was
considered, but setting the properties related to patterns does not fit
in the PWM API. Similarly the idea of just duplicating the lower bits in
a PWM and LED driver separately was considered, but this would not allow
the PWM channels and LEDs to be configured on a per-board basis. The
driver implements the more complex LED interface, and provides a PWM
interface on the side of that, in the same driver.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Tested-by: Marijn Suijten <marijn.suijten@somainline.org>
[On the Sony Xperia Nile Discovery, SDM630]
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Pull LED updates from Pavel Machek:
"Nothing major here, there are two drivers that need review and did not
make it into this round"
* tag 'leds-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
leds: pca955x: Allow zero LEDs to be specified
leds: pca955x: Make the gpiochip always expose all pins
leds: simatic-ipc-leds: Don't directly deref ioremap_resource() returned ptr
leds: simatic-ipc-leds: Make simatic_ipc_led_mem_res static
leds: lm3692x: Return 0 from remove callback
leds: sgm3140: Add ocs,ocp8110 compatible
dt-bindings: vendor-prefixes: Add ocs prefix
dt-bindings: leds: common: fix unit address in max77693 example
It's valid to use the PCA955x devices just for GPIOs and not for LEDs.
In this case, as PCA955X_TYPE_GPIO is now equivalent to
PCA955X_TYPE_NONE, remove the test for whether we have any child nodes
specified in the devicetree.
A consequence of this is it's now possible to bind the driver to a
PCA955x device when dynamically instantiated through the I2C subsystem's
`new_device` interface.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
The devicetree binding allows specifying which pins are GPIO vs LED.
Limiting the instantiated gpiochip to just these pins as the driver
currently does requires an arbitrary mapping between pins and GPIOs, but
such a mapping is not implemented by the driver. As a result,
specifying GPIOs in such a way that they don't map 1-to-1 to pin indexes
does not function as expected.
Establishing such a mapping is more complex than not and even if we did,
doing so leads to a slightly hairy userspace experience as the behaviour
of the PCA955x gpiochip would depend on how the pins are assigned in the
devicetree. Instead, always expose all pins via the gpiochip to provide
a stable interface and track which pins are in use.
Specifying a pin as `type = <PCA955X_TYPE_GPIO>;` in the devicetree
becomes a no-op.
I've assessed the impact of this change by looking through all of the
affected devicetrees as of the tag leds-5.15-rc1:
```
$ git grep -l 'pca955[0123]' $(find . -name dts -type d)
arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
arch/arm/boot/dts/aspeed-bmc-opp-mowgli.dts
arch/arm/boot/dts/aspeed-bmc-opp-swift.dts
arch/arm/boot/dts/aspeed-bmc-opp-tacoma.dts
arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
```
These are all IBM-associated platforms. I've analysed both the
devicetrees and schematics where necessary to determine whether any
systems hit the hazard of the current broken behaviour. For the most
part, the systems specify the pins as either all LEDs or all GPIOs, or
at least do so in a way such that the broken behaviour isn't exposed.
The main counter-point to this observation is the Everest system whose
devicetree describes a large number of PCA955x devices and in some cases
has pin assignments that hit the hazard. However, there does not seem to
be any use of the affected GPIOs in the userspace associated with
Everest.
Regardless, any use of the hazardous GPIOs in Everest is already broken,
so let's fix the interface and then fix any already broken userspace
with it.
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Sparse (rightly) currently gives the following warning:
drivers/leds/simple/simatic-ipc-leds.c:155:40:
sparse: sparse: incorrect type in assignment (different address spaces)
expected void *static [toplevel] simatic_ipc_led_memory
got void [noderef] __iomem *
Fix this by changing the type of simatic_ipc_led_memory to void __iomem *
and use readl()/writel() to access it.
Cc: Henning Schild <henning.schild@siemens.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Gerd Haeussler <gerd.haeussler.ext@siemens.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
